On Fri, Mar 10, 2023 at 06:54:30PM +0800, Sam Li wrote: > Taking account of the new zone append write operation for zoned devices, > BLOCK_ACCT_APPEND enum is introduced as other I/O request type (read, > write, flush). Can it be called BLOCK_ACCT_ZONE_APPEND so it's clear that this operation is specific to zoned devices? I think people might not make the connection if they just see "append" and think that regular devices support this operation. > > Signed-off-by: Sam Li > --- > block/qapi-sysemu.c | 11 ++++++++ > block/qapi.c | 15 ++++++++++ > hw/block/virtio-blk.c | 4 +++ > include/block/accounting.h | 1 + > qapi/block-core.json | 56 ++++++++++++++++++++++++++++++-------- > qapi/block.json | 4 +++ > 6 files changed, 80 insertions(+), 11 deletions(-) > > diff --git a/block/qapi-sysemu.c b/block/qapi-sysemu.c > index 7bd7554150..f7e56dfeb2 100644 > --- a/block/qapi-sysemu.c > +++ b/block/qapi-sysemu.c > @@ -517,6 +517,7 @@ void qmp_block_latency_histogram_set( > bool has_boundaries, uint64List *boundaries, > bool has_boundaries_read, uint64List *boundaries_read, > bool has_boundaries_write, uint64List *boundaries_write, > + bool has_boundaries_append, uint64List *boundaries_append, > bool has_boundaries_flush, uint64List *boundaries_flush, > Error **errp) > { > @@ -557,6 +558,16 @@ void qmp_block_latency_histogram_set( > } > } > > + if (has_boundaries || has_boundaries_append) { > + ret = block_latency_histogram_set( > + stats, BLOCK_ACCT_APPEND, > + has_boundaries_append ? boundaries_append : boundaries); > + if (ret) { > + error_setg(errp, "Device '%s' set append write boundaries fail", id); > + return; > + } > + } > + > if (has_boundaries || has_boundaries_flush) { > ret = block_latency_histogram_set( > stats, BLOCK_ACCT_FLUSH, > diff --git a/block/qapi.c b/block/qapi.c > index c84147849d..d4be8ad72e 100644 > --- a/block/qapi.c > +++ b/block/qapi.c > @@ -533,27 +533,33 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) > > ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; > ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; > + ds->zap_bytes = stats->nr_bytes[BLOCK_ACCT_APPEND]; "zone_append_bytes" would be clearer. For a moment I thought "zap" is a new operation. Since "zap" isn't used anywhere else, let's not introduce a new name here. > ds->unmap_bytes = stats->nr_bytes[BLOCK_ACCT_UNMAP]; > ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; > ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; > + ds->zap_operations = stats->nr_ops[BLOCK_ACCT_APPEND]; > ds->unmap_operations = stats->nr_ops[BLOCK_ACCT_UNMAP]; > > ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; > ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; > + ds->failed_zap_operations = stats->failed_ops[BLOCK_ACCT_APPEND]; > ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; > ds->failed_unmap_operations = stats->failed_ops[BLOCK_ACCT_UNMAP]; > > ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; > ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; > + ds->invalid_zap_operations = stats->invalid_ops[BLOCK_ACCT_APPEND]; > ds->invalid_flush_operations = > stats->invalid_ops[BLOCK_ACCT_FLUSH]; > ds->invalid_unmap_operations = stats->invalid_ops[BLOCK_ACCT_UNMAP]; > > ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; > ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; > + ds->zap_merged = stats->merged[BLOCK_ACCT_APPEND]; > ds->unmap_merged = stats->merged[BLOCK_ACCT_UNMAP]; > ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; > ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; > + ds->zap_total_time_ns = stats->total_time_ns[BLOCK_ACCT_APPEND]; > ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; > ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; > ds->unmap_total_time_ns = stats->total_time_ns[BLOCK_ACCT_UNMAP]; > @@ -571,6 +577,7 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) > > TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; > TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; > + TimedAverage *zap = &ts->latency[BLOCK_ACCT_APPEND]; > TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; > > dev_stats->interval_length = ts->interval_length; > @@ -583,6 +590,10 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) > dev_stats->max_wr_latency_ns = timed_average_max(wr); > dev_stats->avg_wr_latency_ns = timed_average_avg(wr); > > + dev_stats->min_zap_latency_ns = timed_average_min(zap); > + dev_stats->max_zap_latency_ns = timed_average_max(zap); > + dev_stats->avg_zap_latency_ns = timed_average_avg(zap); > + > dev_stats->min_flush_latency_ns = timed_average_min(fl); > dev_stats->max_flush_latency_ns = timed_average_max(fl); > dev_stats->avg_flush_latency_ns = timed_average_avg(fl); > @@ -591,6 +602,8 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) > block_acct_queue_depth(ts, BLOCK_ACCT_READ); > dev_stats->avg_wr_queue_depth = > block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); > + dev_stats->avg_zap_queue_depth = > + block_acct_queue_depth(ts, BLOCK_ACCT_APPEND); > > QAPI_LIST_PREPEND(ds->timed_stats, dev_stats); > } > @@ -600,6 +613,8 @@ static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) > = bdrv_latency_histogram_stats(&hgram[BLOCK_ACCT_READ]); > ds->wr_latency_histogram > = bdrv_latency_histogram_stats(&hgram[BLOCK_ACCT_WRITE]); > + ds->zap_latency_histogram > + = bdrv_latency_histogram_stats(&hgram[BLOCK_ACCT_APPEND]); > ds->flush_latency_histogram > = bdrv_latency_histogram_stats(&hgram[BLOCK_ACCT_FLUSH]); > } > diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c > index 4ded625732..7605ca4f03 100644 > --- a/hw/block/virtio-blk.c > +++ b/hw/block/virtio-blk.c > @@ -925,6 +925,10 @@ static int virtio_blk_handle_zone_append(VirtIOBlockReq *req, > data->in_num = in_num; > data->zone_append_data.offset = offset; > qemu_iovec_init_external(&req->qiov, out_iov, out_num); > + > + block_acct_start(blk_get_stats(s->blk), &req->acct, len, > + BLOCK_ACCT_APPEND); > + > blk_aio_zone_append(s->blk, &data->zone_append_data.offset, &req->qiov, 0, > virtio_blk_zone_append_complete, data); > return 0; > diff --git a/include/block/accounting.h b/include/block/accounting.h > index b9caad60d5..61cc868666 100644 > --- a/include/block/accounting.h > +++ b/include/block/accounting.h > @@ -37,6 +37,7 @@ enum BlockAcctType { > BLOCK_ACCT_READ, > BLOCK_ACCT_WRITE, > BLOCK_ACCT_FLUSH, > + BLOCK_ACCT_APPEND, > BLOCK_ACCT_UNMAP, > BLOCK_MAX_IOTYPE, > }; > diff --git a/qapi/block-core.json b/qapi/block-core.json > index c05ad0c07e..76fe9c2fca 100644 > --- a/qapi/block-core.json > +++ b/qapi/block-core.json > @@ -849,6 +849,9 @@ > # @min_wr_latency_ns: Minimum latency of write operations in the > # defined interval, in nanoseconds. > # > +# @min_zap_latency_ns: Minimum latency of zone append operations in the > +# defined interval, in nanoseconds. > +# > # @min_flush_latency_ns: Minimum latency of flush operations in the > # defined interval, in nanoseconds. > # > @@ -858,6 +861,9 @@ > # @max_wr_latency_ns: Maximum latency of write operations in the > # defined interval, in nanoseconds. > # > +# @max_zap_latency_ns: Maximum latency of zone append operations in the > +# defined interval, in nanoseconds. > +# > # @max_flush_latency_ns: Maximum latency of flush operations in the > # defined interval, in nanoseconds. > # > @@ -867,6 +873,9 @@ > # @avg_wr_latency_ns: Average latency of write operations in the > # defined interval, in nanoseconds. > # > +# @avg_zap_latency_ns: Average latency of zone append operations in the > +# defined interval, in nanoseconds. > +# > # @avg_flush_latency_ns: Average latency of flush operations in the > # defined interval, in nanoseconds. > # > @@ -876,15 +885,20 @@ > # @avg_wr_queue_depth: Average number of pending write operations > # in the defined interval. > # > +# @avg_zap_queue_depth: Average number of pending zone append operations > +# in the defined interval. > +# > # Since: 2.5 > ## > { 'struct': 'BlockDeviceTimedStats', > 'data': { 'interval_length': 'int', 'min_rd_latency_ns': 'int', > 'max_rd_latency_ns': 'int', 'avg_rd_latency_ns': 'int', > 'min_wr_latency_ns': 'int', 'max_wr_latency_ns': 'int', > - 'avg_wr_latency_ns': 'int', 'min_flush_latency_ns': 'int', > - 'max_flush_latency_ns': 'int', 'avg_flush_latency_ns': 'int', > - 'avg_rd_queue_depth': 'number', 'avg_wr_queue_depth': 'number' } } > + 'avg_wr_latency_ns': 'int', 'min_zap_latency_ns': 'int', > + 'max_zap_latency_ns': 'int', 'avg_zap_latency_ns': 'int', > + 'min_flush_latency_ns': 'int', 'max_flush_latency_ns': 'int', > + 'avg_flush_latency_ns': 'int', 'avg_rd_queue_depth': 'number', > + 'avg_wr_queue_depth': 'number', 'avg_zap_queue_depth': 'number' } } > > ## > # @BlockDeviceStats: > @@ -895,12 +909,16 @@ > # > # @wr_bytes: The number of bytes written by the device. > # > +# @zap_bytes: The number of bytes appended by the zoned devices. > +# > # @unmap_bytes: The number of bytes unmapped by the device (Since 4.2) > # > # @rd_operations: The number of read operations performed by the device. > # > # @wr_operations: The number of write operations performed by the device. > # > +# @zap_operations: The number of zone append operations performed by the zoned devices. > +# > # @flush_operations: The number of cache flush operations performed by the > # device (since 0.15) > # > @@ -911,6 +929,8 @@ > # > # @wr_total_time_ns: Total time spent on writes in nanoseconds (since 0.15). > # > +# @zap_total_time_ns: Total time spent on zone append writes in nanoseconds. > +# > # @flush_total_time_ns: Total time spent on cache flushes in nanoseconds > # (since 0.15). > # > @@ -928,6 +948,9 @@ > # @wr_merged: Number of write requests that have been merged into another > # request (Since 2.3). > # > +# @zap_merged: Number of zone append requests that have been merged into > +# another request. > +# > # @unmap_merged: Number of unmap requests that have been merged into another > # request (Since 4.2) > # > @@ -941,6 +964,9 @@ > # @failed_wr_operations: The number of failed write operations > # performed by the device (Since 2.5) > # > +# @failed_zap_operations: The number of failed zone append write > +# operations performed by the zoned devices > +# > # @failed_flush_operations: The number of failed flush operations > # performed by the device (Since 2.5) > # > @@ -953,6 +979,9 @@ > # @invalid_wr_operations: The number of invalid write operations > # performed by the device (Since 2.5) > # > +# @invalid_zap_operations: The number of invalid zone append operations > +# performed by the zoned device > +# > # @invalid_flush_operations: The number of invalid flush operations > # performed by the device (Since 2.5) > # > @@ -972,27 +1001,32 @@ > # > # @wr_latency_histogram: @BlockLatencyHistogramInfo. (Since 4.0) > # > +# @zap_latency_histogram: @BlockLatencyHistogramInfo. > +# > # @flush_latency_histogram: @BlockLatencyHistogramInfo. (Since 4.0) > # > # Since: 0.14 > ## > { 'struct': 'BlockDeviceStats', > - 'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'unmap_bytes' : 'int', > - 'rd_operations': 'int', 'wr_operations': 'int', > + 'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'zap_bytes': 'int', > + 'unmap_bytes' : 'int', 'rd_operations': 'int', > + 'wr_operations': 'int', 'zap_operations': 'int', > 'flush_operations': 'int', 'unmap_operations': 'int', > 'rd_total_time_ns': 'int', 'wr_total_time_ns': 'int', > - 'flush_total_time_ns': 'int', 'unmap_total_time_ns': 'int', > - 'wr_highest_offset': 'int', > - 'rd_merged': 'int', 'wr_merged': 'int', 'unmap_merged': 'int', > - '*idle_time_ns': 'int', > + 'zap_total_time_ns': 'int', 'flush_total_time_ns': 'int', > + 'unmap_total_time_ns': 'int', 'wr_highest_offset': 'int', > + 'rd_merged': 'int', 'wr_merged': 'int', 'zap_merged': 'int', > + 'unmap_merged': 'int', '*idle_time_ns': 'int', > 'failed_rd_operations': 'int', 'failed_wr_operations': 'int', > - 'failed_flush_operations': 'int', 'failed_unmap_operations': 'int', > - 'invalid_rd_operations': 'int', 'invalid_wr_operations': 'int', > + 'failed_zap_operations': 'int', 'failed_flush_operations': 'int', > + 'failed_unmap_operations': 'int', 'invalid_rd_operations': 'int', > + 'invalid_wr_operations': 'int', 'invalid_zap_operations': 'int', > 'invalid_flush_operations': 'int', 'invalid_unmap_operations': 'int', > 'account_invalid': 'bool', 'account_failed': 'bool', > 'timed_stats': ['BlockDeviceTimedStats'], > '*rd_latency_histogram': 'BlockLatencyHistogramInfo', > '*wr_latency_histogram': 'BlockLatencyHistogramInfo', > + '*zap_latency_histogram': 'BlockLatencyHistogramInfo', > '*flush_latency_histogram': 'BlockLatencyHistogramInfo' } } > > ## > diff --git a/qapi/block.json b/qapi/block.json > index 5fe068f903..5a57ef4a9f 100644 > --- a/qapi/block.json > +++ b/qapi/block.json > @@ -525,6 +525,9 @@ > # @boundaries-write: list of interval boundary values for write latency > # histogram. > # > +# @boundaries-zap: list of interval boundary values for zone append write > +# latency histogram. > +# > # @boundaries-flush: list of interval boundary values for flush latency > # histogram. > # > @@ -573,5 +576,6 @@ > '*boundaries': ['uint64'], > '*boundaries-read': ['uint64'], > '*boundaries-write': ['uint64'], > + '*boundaries-zap': ['uint64'], > '*boundaries-flush': ['uint64'] }, > 'allow-preconfig': true } > -- > 2.39.2 >